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Acquisition - Narrative (Details - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Mar. 06, 2015
Nov. 20, 2014
Mar. 31, 2015
Sep. 30, 2015
Dec. 31, 2014
Sep. 30, 2015
Sep. 30, 2014
Business Acquisition [Line Items]              
Cash paid           $ 2,124 $ 0
Impairment expense         $ 800 $ 2,515 $ 276
ADA Analytics Israel, LLC              
Business Acquisition [Line Items]              
Cash paid $ 2,360 $ 200 $ 2,400        
Cash paid to acquire business, VAT tax     $ 400        
Contingent consideration, liability $ 500            
Impairment expense       $ 1,900